diff options
Diffstat (limited to 'test/syscalls/linux/mkdir.cc')
| -rw-r--r-- | test/syscalls/linux/mkdir.cc | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/syscalls/linux/mkdir.cc b/test/syscalls/linux/mkdir.cc index 27758203d..11fbfa5c5 100644 --- a/test/syscalls/linux/mkdir.cc +++ b/test/syscalls/linux/mkdir.cc @@ -82,6 +82,39 @@ TEST_F(MkdirTest, FailsOnDirWithoutWritePerms) { SyscallFailsWithErrno(EACCES)); } +TEST_F(MkdirTest, DirAlreadyExists) { + // Drop capabilities that allow us to override file and directory permissions. + ASSERT_NO_ERRNO(SetCapability(CAP_DAC_OVERRIDE, false)); + ASSERT_NO_ERRNO(SetCapability(CAP_DAC_READ_SEARCH, false)); + + ASSERT_THAT(mkdir(dirname_.c_str(), 0777), SyscallSucceeds()); + auto dir = JoinPath(dirname_.c_str(), "foo"); + EXPECT_THAT(mkdir(dir.c_str(), 0777), SyscallSucceeds()); + + struct { + int mode; + int err; + } tests[] = { + {.mode = 0000, .err = EACCES}, // No perm + {.mode = 0100, .err = EEXIST}, // Exec only + {.mode = 0200, .err = EACCES}, // Write only + {.mode = 0300, .err = EEXIST}, // Write+exec + {.mode = 0400, .err = EACCES}, // Read only + {.mode = 0500, .err = EEXIST}, // Read+exec + {.mode = 0600, .err = EACCES}, // Read+write + {.mode = 0700, .err = EEXIST}, // All + }; + for (const auto& t : tests) { + printf("mode: 0%o\n", t.mode); + EXPECT_THAT(chmod(dirname_.c_str(), t.mode), SyscallSucceeds()); + EXPECT_THAT(mkdir(dir.c_str(), 0777), SyscallFailsWithErrno(t.err)); + } + + // Clean up. + EXPECT_THAT(chmod(dirname_.c_str(), 0777), SyscallSucceeds()); + ASSERT_THAT(rmdir(dir.c_str()), SyscallSucceeds()); +} + TEST_F(MkdirTest, MkdirAtEmptyPath) { ASSERT_THAT(mkdir(dirname_.c_str(), 0777), SyscallSucceeds()); auto fd = |